Answer: <u>Guanine
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According to Chargaff's rule, the base pairing in the DNA and RNA is fixed. Adenine always pairs with Thymine in DNA and Uracil in RNA. Guanine pairs up with cytosine. This complementary base pairing is universal and constant. That's why amounts are also equal. It means if cytosine is 20% in any DNA sample, then amount of guanine would be 20% as well.
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Explanation:
You can't exactly tell what's going on in the picture if there is no context at all.
I would say Satellites. Satellites are the only thing here I see can measure things globally, the rest is more regional.
Answer:
climate changes are actually due to the reason that the weather pattern of a neighbouring region and earthquakes are due to the water motion below earth surface
Explanation: